The explosion-proof pressure transmitter uses a high-performance diffusion silicon pressure-sensing chip, together with advanced circuit processing and temperature compensation technology, to convert pressure changes into linear current or voltage signals. The product is compact, easy to install, with a cast aluminium housing isolated explosion-proof, suitable for measuring mediums such as gases and liquids compatible with the material of the contact part, it can be used to measure gauge pressure, negative pressure and absolute pressure. It has reverse polarity and current limiting protection, laser adjustable resistance temperature compensation, programmable adjustment, anti-vibration, anti-shock, anti-radio frequency electromagnetic interference, overload and anti-interference capability, economic and practical stability. This product is widely used in gas pipelines, water plants, oil refineries, sewage treatment plants, building materials, light industry, machinery and other industrial fields to achieve the measurement of liquid, gas and steam pressure.